S905/MXQ Pro - disable internal wifi

I found internal wifi to be unstable and low transfers. I use usb wifi dongle instead and it works without any problems. However, now I 'm getting 2 interfaces: wlan0 and wlan1 and I'm always confused which one is internal wifi (they even keep swapping sometimes).

I want completly disable internal wifi. As it's linux, this could be done eaisly by blacklisting kernel module, but I'm not sure how to indetify which module is it and how to blacklist, because corresponding configuration should be in /etc/modprobe.d.